VOLVO
ECM-P050464 - Brake Switch A / B Correlation. Algorithm Based Failures. Signal plausibility failure
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
7 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Pokaż modele wg rocznika i silnika (20)
- Volvo S60 (2011–)2011Tylko silnik: B4164T, B4164T3, B4204T6, B4204T7
- Volvo S60 (2011–)2012–2014Tylko silnik: B4164T, B4164T2, B4164T3, B4204T7
- Volvo S60 (2011–)2015Tylko silnik: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2010Tylko silnik: B4204T6
- Volvo S80 (2007–)2011Tylko silnik: B4164T, B4204T6, B4204T7
- Volvo S80 (2007–)2012–2014Tylko silnik: B4164T, B4164T2, B4204T6, B4204T7
- Volvo S80 (2007–)2015Tylko silnik: B4164T
- Volvo V40 (2013–)2013Tylko silnik: B4164T, B4164T3
- Volvo V40 (2013–)2014–2015Tylko silnik: B4164T, B4164T3, B4164T4
- Volvo V40 Cross Country (2013–)2013–2015Tylko silnik: B4164T
- Volvo V60 (2011–)2011Tylko silnik: B4164T, B4164T3, B4204T6, B4204T7
- Volvo V60 (2011–)2012–2014Tylko silnik: B4164T, B4164T2, B4164T3, B4204T7
- Volvo V60 (2011–)2015Tylko silnik: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2010Tylko silnik: B4204T6
- Volvo V70 (2008–)2011Tylko silnik: B4164T, B4204T6, B4204T7
- Volvo V70 (2008–)2012–2014Tylko silnik: B4164T, B4164T2, B4204T7
- Volvo V70 (2008–)2015Tylko silnik: B4164T, B4164T2
- Volvo XC60 (2009–)2010Tylko silnik: B4204T6
- Volvo XC60 (2009–)2011–2012Tylko silnik: B4204T6, B4204T7
- Volvo XC60 (2009–)2013–2015Tylko silnik: B4204T7
Co oznacza ten kod błędu?
The ECM verifies that the readings from the pedal sensor and the light switch are reliable. The code is set when the two signals differ repeatedly. The central electronic module (CEM) is also connected to the brake light switch and may be the cause.
Możliwe przyczyny
- Diagnose the cause in the central electronic module (CEM)
- The wire to the brake light switch has a break or is shorted to ground or supply voltage
- The wire to the brake pedal position sensor has a break or is shorted to ground or supply voltage
- Contact resistance, oxidation or intermittent contact in the connector
- The wire to the brake pedal switch has a break or is shorted to ground or supply voltage
Co możesz zrobić
- 1Read the codes in the brake control module (BCM) and the central electronic module (CEM) and repair them first
- 2Check that the brake light switch is fitted correctly and that the brake pedal position sensor sits properly
- 3Check the connections to the brake light switch and brake pedal position sensor for oxidation, breaks or a short to ground
- 4Check that the fuses are intact
- 5If you have a diagnostic tool, follow the brake pedal positions in live data and check that they agree when the pedal is pressed and released
- 6Do not work on the braking system yourself; if the fault returns, have a workshop check the components with diagnostic equipment
Objawy, które możesz zauważyć3
- Red warning symbol and message in the display
- Cruise control does not engage
- Warning symbol and message in the display
Na co może wpływać usterka1
- Cruise control is switched off while the fault is active
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.